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FFI at CT (#10150)

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* enable FFI at CT
* rename useFFI=>nimHasLibFFI; improve formatting rawExecute traceCode
* disable libffi on windows (works for win32, not yet win64)
This commit is contained in:
Timothee Cour 2019-02-23 02:31:01 -08:00 • committed by Andreas Rumpf
commit adbabf145c
9 changed files with 250 additions and 136 deletions
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8
compiler/vmgen.nim
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@ -229,7 +229,9 @@ proc getTemp(cc: PCtx; tt: PType): TRegister =
proc freeTemp(c: PCtx; r: TRegister) =
let c = c.prc
if c.slots[r].kind in {slotSomeTemp..slotTempComplex}: c.slots[r].inUse = false
if c.slots[r].kind in {slotSomeTemp..slotTempComplex}:
# this seems to cause https://github.com/nim-lang/Nim/issues/10647
c.slots[r].inUse = false
proc getTempRange(cc: PCtx; n: int; kind: TSlotKind): TRegister =
# if register pressure is high, we re-use more aggressively:
@ -1540,8 +1542,8 @@ proc genTypeLit(c: PCtx; t: PType; dest: var TDest) =
proc importcSym(c: PCtx; info: TLineInfo; s: PSym) =
when hasFFI:
if allowFFI in c.features:
c.globals.add(importcSymbol(s))
if compiletimeFFI in c.config.features:
c.globals.add(importcSymbol(c.config, s))
s.position = c.globals.len
else:
localError(c.config, info, "VM is not allowed to 'importc'")